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Jun 22, 2024

Controlling electronics with light: Ultrafast lasers manipulate magnetite’s structure

Posted by in categories: electronics, materials

Researchers at EPFL have discovered that by shining different wavelengths (colors) of light on a material called magnetite, they can change its state, e.g., making it more or less conducive to electricity. The discovery could lead to new ways of designing new materials for electronics such as memory storage, sensors, and other devices that rely on fast and efficient material responses.

Jun 22, 2024

Universal and High-Fidelity Resolution Extending for Fluorescence Microscopy Using a Single-Training Physics-Informed Sparse Neural Network

Posted by in categories: information science, robotics/AI

As a supplement to optical super-resolution microscopy techniques, computational super-resolution methods have demonstrated remarkable results in alleviating the spatiotemporal imaging trade-off. However, they commonly suffer from low structural fidelity and universality. Therefore, we herein propose a deep-physics-informed sparsity framework designed holistically to synergize the strengths of physical imaging models (image blurring processes), prior knowledge (continuity and sparsity constraints), a back-end optimization algorithm (image deblurring), and deep learning (an unsupervised neural network). Owing to the utilization of a multipronged learning strategy, the trained network can be applied to a variety of imaging modalities and samples to enhance the physical resolution by a factor of at least 1.67 without requiring additional training or parameter tuning.

Jun 22, 2024

Physicists propose time crystal-based circuit board to reduce quantum computing errors

Posted by in categories: computing, quantum physics

A trio of physicists, two with Uniwersytet Jagielloński in Poland and one with Swinburne University of Technology in Australia, are proposing the use of temporal printed circuit boards made using time crystals as a way to solve error problems on quantum computers. Krzysztof Giergiel, Krzysztof Sacha and Peter Hannaford have written a paper describing their ideas, which is currently available on the arXiv preprint server.

Jun 22, 2024

Key mechanism in nuclear reaction dynamics promises advances in nuclear physics

Posted by in category: physics

Researchers have made significant progress in understanding the transfer of neutrons in weakly bound nuclei. The experiment, performed at Legnaro National Laboratory, focused on the one-neutron stripping process in reactions involving lithium-6 and bismuth-209. The work is published in the journal Nuclear Science and Techniques.

Jun 22, 2024

Researchers achieve practical 3D tracking at record-breaking speeds

Posted by in categories: robotics/AI, security, surveillance

Researchers have developed a new 3D method that can be used to track fast-moving objects at unprecedented high speeds. The real-time tracking approach, which is based on single-pixel imaging, could be used to improve autonomous driving, industrial inspection and security surveillance systems.

Jun 22, 2024

Researchers stabilize photon interference in optical chips using topological wave propagation

Posted by in category: computing

A collaboration of Professor Szameit’s research group at the University of Rostock with researchers from the Albert-Ludwigs-Universität Freiburg has succeeded in stabilizing the interference of two photons in optical chips with the concept of topologically protected wave propagation. The research results are published in Science.

Jun 22, 2024

Focusing micromechanical polaritons in topologically nontrivial hyperbolic metasurfaces

Posted by in category: materials

Dr. Johan Christensen, leader of IMDEA Materials Institute’s Mechanical and Acoustic Metamaterials research group, is among the researchers behind a pioneering study exploring the topological properties of metamaterials.

Jun 22, 2024

CDK hackers demand millions to end cyberattack crippling auto dealers: Bloomberg

Posted by in categories: cybercrime/malcode, transportation

A group that says they hacked software company CDK Global is demanding tens of millions of dollars in ransom, Bloomberg reported.

CDK, which provides software to car dealerships in North America, intends to pay the ransom but discussions are subject to change, according to Bloomberg’s report which cited a person familiar with the situation.

The source said the group behind the hack is believed to be based in eastern Europe, Bloomberg reported.

Jun 21, 2024

Chemobrain is real. Here’s what to expect after cancer treatment

Posted by in categories: biotech/medical, neuroscience

A few years ago, one of my students came to me and spoke about her mother who was undergoing treatment for breast cancer.

She said her mother was losing her memory and her bearings, and was very worried because nobody knew what to do about her symptoms. The oncologist sent her to the psychiatrist. The psychiatrist sent her back, saying that her symptoms were a result of the cancer treatment.

This experience prompted my student and me to begin studying the problem of or ‘chemofog’ – the termsused by people who have experienced memory loss or cognitive impairment following cancer treatment. Scientifically, it’s referred to as ‘cancer-related cognitive impairment’ or ‘chemotherapy-related cognitive dysfunction’

Jun 21, 2024

‘Ghost Particles’ Could Be The Secret Behind The Heaviest Elements

Posted by in categories: nuclear energy, particle physics, quantum physics

Big atoms demand big energy to construct. A new model of quantum interactions now suggests some of the lightest particles in the Universe might play a critical role in how at least some heavy elements form.

Physicists in the US have shown how subatomic ‘ghost’ particles known as neutrinos could force atomic nuclei into becoming new elements.

Not only would this be an entirely different method for building elements heavier than iron, it could also describe a long-hypothesized ‘in-between’ path that sits on the border between two known processes, nuclear fusion and nucleosynthesis.

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